EP0641823A1 - Reifen mit durch Kieselsäure verstärkter Lauffläche - Google Patents

Reifen mit durch Kieselsäure verstärkter Lauffläche Download PDF

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Publication number
EP0641823A1
EP0641823A1 EP94113268A EP94113268A EP0641823A1 EP 0641823 A1 EP0641823 A1 EP 0641823A1 EP 94113268 A EP94113268 A EP 94113268A EP 94113268 A EP94113268 A EP 94113268A EP 0641823 A1 EP0641823 A1 EP 0641823A1
Authority
EP
European Patent Office
Prior art keywords
silica
rubber
phr
carbon black
tire
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP94113268A
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English (en)
French (fr)
Other versions
EP0641823B1 (de
Inventor
David John Zanzig
Paul Harry Sandstrom
Michael Julian Crawford
John Joseph Andre Verthe
Cheryl Anne Losey
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Goodyear Tire and Rubber Co
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Goodyear Tire and Rubber Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Publication of EP0641823A1 publication Critical patent/EP0641823A1/de
Application granted granted Critical
Publication of EP0641823B1 publication Critical patent/EP0641823B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L21/00—Compositions of unspecified rubbers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/34—Silicon-containing compounds
    • C08K3/36—Silica
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C1/00—Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
    • B60C1/0016—Compositions of the tread
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L7/00—Compositions of natural rubber

Definitions

  • This invention relates to a tire having a rubber tread which is reinforced with silica.
  • the tread is comprised of a specified multiple component rubber blend reinforced with a quantitative amount of silica or a combination of silica and carbon black.
  • the tread rubber is required to be composed of cis 1,4-polybutadiene rubber and high vinyl polybutadiene rubber and, optionally, medium vinyl polybutadiene rubber.
  • Pneumatic rubber tires are conventionally prepared with a rubber tread which can be a blend of various rubbers which is typically reinforced with carbon black.
  • rubbers are evaluated, selected and blended for a purpose of achieving desired tire tread properties and particularly a balance of tire tread characteristic properties, mainly, rolling resistance, traction and wear.
  • sulfur cured rubber which contains substantial amounts of reinforcing filler(s).
  • Carbon black is commonly used for such purpose and normally provides or enhances good physical properties for the sulfur cured rubber.
  • Particulate silica is also sometimes used for such purpose, particularly when the silica is used in conjunction with a coupling agent.
  • a combination of silica and carbon black is utilized for reinforcing fillers for various rubber products, including treads for tires.
  • US patent 3,978,165 relates to a composition, taught to be useful for tire treads composed of (a) "medium vinyl" polybutadiene, (b) polybutadiene and (c) butadiene/styrene rubbers.
  • German DE No. 2936-72 relates to mixtures of polybutadiene containing 35-70 percent of 1,2- units mixed with polyisoprene rubber and, optionally, with cis polybutadiene or styrene/butadiene rubber for tires.
  • US patents 3,827,991, 4,220,564 and 4,224,197 relate to combinations of polybutadiene containing at least seventy percent of 1,2-configuration with various other rubbers.
  • US patent 4,192,366 relates to a tire with tread of a blend of cis-polyisoprene rubber and a medium vinyl polybutadiene rubber cured with an excess of sulfur.
  • US patent 4,530,959 relates to a tire with tread composed of medium vinyl polybutadiene, cis 1,4-polyisoprene rubber and styrene/butadiene copolymer rubber in which the medium vinyl polybutadiene rubber can be prepared by polymerizing butadiene in the presence of a polar modifier and divinyl benzene in accordance with the teachings of US patent 4,230,841.
  • carbon black is considered to be a more effective reinforcing filler for rubber tire treads than silica if the silica is used without a coupling agent.
  • Such coupling agents may be premixed, or pre-reacted, with the silica particles or added to the rubber mix during the rubber/silica processing, or mixing, stage. If the coupling agent and silica are added separately to the rubber mix during the rubber/silica mixing, or processing stage, it is considered that the coupling agent then combines in situ with the silica.
  • such coupling agents are generally composed of a silane which has a constituent component, or moiety, (the silane portion) capable of reacting with the silica surface and, also, a constituent component, or moiety, capable of reacting with the rubber, particularly a sulfur vulcanizable rubber which contains carbon-to-carbon double bonds, or unsaturation.
  • the coupler acts as a connecting bridge between the silica and the rubber and thereby enhances the rubber reinforcement aspect of the silica.
  • the silane of the coupling agent apparently forms a bond to the silica surface, possibly through hydrolysis, and the rubber reactive component of the coupling agent combines with the rubber itself.
  • the rubber reactive component of the coupler is temperature sensitive and tends to combine with the rubber during the final and higher temperature sulfur vulcanization stage and, thus, subsequent to the rubber/silica/coupler mixing stage and, therefore, after the silane group of the coupler has combined with the silica.
  • some degree of combination, or bonding may occur between the rubber-reactive component of the coupler and the rubber during an initial rubber/silica/coupler mixing stages and, thus, prior to a subsequent vulcanization stage.
  • the rubber-reactive group component of the coupler may be, for example, one or more of groups such as mercapto, amino, vinyl, epoxy, and sulfur groups, preferably a sulfur or mercapto moiety and more preferably sulfur.
  • coupling agents are taught for use in combining silica and rubber, such as for example, silane coupling agents containing a polysulfide component, or structure, such as bis-(3-triethoxysilylpropyl) tetrasulfide (e.g. U.S. Patent No. 3,873,489).
  • U.S. Patent No. 5,066,721 in its Comparative Test Example 1 in Table 3 (column 15), discloses the use of solution polymerization prepared SBR containing 50 parts silica for a tire tread.
  • Table 4 (column 17) illustrates the tire preparation.
  • U.S. Patent No. 5,227,425 also discloses the use of a solution polymerization prepared SBR which is silica reinforced and in which is preferenced over an emulsion polymerization prepared SBR.
  • 4,519,430 discloses a silica rich tire tread which contains solution or emulsion SBR, optionally with polybutadiene rubber and/or polyisoprene rubber together with a mixture of silica and carbon black, with silica being required to be a major component of the silica/carbon black reinforcing filler.
  • EPO application 447,066 discloses a rubber composition for a tire tread composed of silica and silane coupling agent with rubbers composed of polybutadiene or styrene/butadiene copolymer prepared with an organic alkali metal initiator and which may also contain other specified rubbers.
  • a pneumatic tire having a tread comprised of, based on 100 parts by weight rubber, (A) at least two diene-based elastomers comprised of (i) about 10 to about 50, preferably about 20 to about 35, phr of cis 1,4-polybutadiene rubber, (ii) about 0 to about 90, preferably about 30 to about 70, phr of medium vinyl polybutadiene rubber having a vinyl content in a range of about 30 to about 60, preferably about 40 to about 50, weight percent, and (iii) about 0 to about 90, preferably about 40 to about 70, phr of a high vinyl polybutadiene rubber having a vinyl content in a range of about 60 to about 95, preferably about 70 to about 80, weight percent; wherein the total of said medium and high vinyl polybutadiene rubbers is in a range of about 50 to about 90, preferably about 65 to about 75, phr, (B) about 50
  • the tire tread rubber can also contain about 5 to about 20 phr of cis-1,4 polyisoprene rubber.
  • the rubber blends containing the aforesaid high silica loading, including the silica coupler, in combination with the defined rubbers, which include the medium vinyl polybutadiene rubbers, is an important feature of the invention designed to enhance properties of a tire tread containing a substantial amount of silica reinforcement.
  • the medium vinyl (MVBD) polybutadiene rubber is considered herein to be beneficial to rolling resistance and traction
  • the high vinyl (HVBD) polybutadiene rubber is beneficial to traction
  • the medium vinyl polybutadiene typically has about 10 to about 40 percent of its monomer units in a cis 1,4-configuration and, after allowing for the medium vinyl content (1,2-monomer configuration), the remainder of the polymer is considered to be of monomer units in a trans 1,4-configuration.
  • the medium vinyl polybutadiene, in its unvulcanized state, can typically be additionally characterized by having a ML-4 (100°C) viscosity in the range of about 40 to about 120.
  • polybutadienes particularly those in the higher ML-4 viscosity range, can optionally be individually oil extended before mixing with various rubber compounding materials for ease of processing. If oil extension is used, usually about 15 to about 35 phr of rubber processing oil is used, usually of the aromatic or aromatic/paraffinic oil type, to provide a ML-4 (100°C) viscosity of about 40-80.
  • the invention can be practiced with medium vinyl polybutadiene rubber produced by various processes, such as those already known in the art.
  • Such preferred medium vinyl polybutadiene is of the type prepared by polymerizing 1,3-butadiene with a very small amount of divinylbenzene in an essentially polar aromatic solvent with an alkyl lithium catalyst and at least one polar catalyst modifier as described in U.S. Patent No. 4,230,841 which is incorporated herein by reference.
  • polar modifiers are prescribed in the patent, of which the strong catalyst modifiers are exemplified such as mexamethyl phosphoric acid triamide (HMPA), N,N,N',N'-tetramethylethylene diamine (TMEDA), ethylene glycol dimethyl ether (glyme), diethylene glycol dimethyl ether (diglyme), triethylene glycol dimethyl ether (triglyme) and tetraethylene glycol dimethyl ether (tetraglyme).
  • HMPA mexamethyl phosphoric acid triamide
  • TEDA N,N,N',N'-tetramethylethylene diamine
  • glyme ethylene glycol dimethyl ether
  • diglyme diethylene glycol dimethyl ether
  • triglyme triethylene glycol dimethyl ether
  • tetraethylene glycol dimethyl ether tetraglyme
  • the medium vinyl content of the required polybutadiene refers to the weight percent of content of the polymer in the 1,2-configuration.
  • the cis 1,4-polybutadiene rubber (PBD) is considered herein to be beneficial to enhance the tire tread's wear, or treadwear.
  • Such PBD can be prepared, for example, by organic solution polymerization of 1,3-butadiene.
  • the PBD may be conventionally characterized, for example, by having at least a 90% cis 1,4-content.
  • the cis 1,4-polyisoprene natural rubber is well known to those having skill in the rubber art.
  • a balanced rubber blend of at least two rubbers which relies upon silica reinforcement which, in turn, relies on a silica coupler for the silica's reinforcing effect for the rubber blend.
  • sulfur vulcanized rubber tread when such sulfur vulcanized rubber tread also may contain carbon black a weight ratio of silica to carbon black is at least about 2/1, preferably at least about 4/1 and for some applications at least 10/1.
  • siliceous pigments used in rubber compounding applications can be used as the silica in this invention, including pyrogenic and precipitated siliceous pigments (silica), although precipitate silicas are preferred.
  • the siliceous pigments preferably employed in this invention are precipitated silicas such as, for example, those obtained by the acidification of a soluble silicate, e.g., sodium silicate.
  • the siliceous pigment should, for example, have an ultimate particle size in a range of 50 to 10,000 angstroms, preferably between 50 and 400 angstroms.
  • the BET surface area of the pigment is preferably in the range of about 100 to about 250, preferably about 120 to about 180, square meters per gram. The BET method of measuring surface area is described in the Journal of the American Chemical Society , Volume 60, page 304 (1930).
  • the silica also typically has a dibutylphthalate (DBP) absorption value in a range of about 200 to about 400, and usually about 220 to about 300.
  • DBP dibutylphthalate
  • the silica might be expected to have an average ultimate particle size, for example, in a range of about 0.01 to 0.05 micron as determined by the electron microscope, although the silica particles may be even smaller in size.
  • silicas may be considered for use in this invention such as, for example only and without limitation, silicas commercially available from PPG Industries under the Hi-Sil trademark with designations 210, 243, etc; silicas available from Rhone-Poulenc, with designations of Z1165MP and Z165GR and silicas available from Degussa AG with designations VN2 and VN3, etc.
  • the PPG Hi-Sil silicas are preferred.
  • the rubber composition of the tread rubber would be compounded by methods generally known in the rubber compounding art, such as mixing the various sulfur-vulcanizable constituent rubbers with various commonly used additive materials such as, for example, curing aids, such as sulfur, activators, retarders and accelerators, processing additives, such as oils, resins including tackifying resins, silicas, and plasticizers, fillers, pigments, fatty acid, zinc oxide, waxes, antioxidants and antiozonants, peptizing agents and reinforcing materials such as, for example, carbon black.
  • curing aids such as sulfur, activators, retarders and accelerators
  • processing additives such as oils, resins including tackifying resins, silicas, and plasticizers
  • fillers pigments, fatty acid, zinc oxide, waxes, antioxidants and antiozonants
  • peptizing agents and reinforcing materials such as, for example, carbon black.
  • the additives mentioned above are selected and commonly used in conventional amounts.
  • Typical amounts of tackifier resins comprise about 0.5 to about 10 phr, usually about 1 to about 5 phr.
  • processing aids comprise about 1 to about 50 phr.
  • processing aids can include, for example, aromatic, napthenic, and/or paraffinic processing oils.
  • Typical amounts of antioxidants comprise about 1 to about 5 phr. Representative antioxidants may be, for example, diphenyl-p-phenylenediamine and others, such as, for example, those disclosed in the Vanderbilt Rubber Handbook (1978), pages 344-346.
  • Typical amounts of antiozonants comprise about 1 to 5 phr.
  • Typical amounts of fatty acids, if used, which can include stearic acid comprise about 0.5 to about 3 phr.
  • Typical amounts of zinc oxide comprise about 2 to about 5 phr.
  • Typical amounts of waxes comprise about 1 to about 5 phr. Often microcrystalline waxes are used.
  • Typical amounts of peptizers comprise about 0.1 to about 1 phr. Typical peptizers may be, for example, pentachlorothiophenol and dibenzamidodiphenyl disulfide.
  • the vulcanization is conducted in the presence of a sulfur vulcanizing agent.
  • suitable sulfur vulcanizing agents include elemental sulfur (free sulfur) or sulfur donating vulcanizing agents, for example, an amine disulfide, polymeric polysulfide or sulfur olefin adducts.
  • the sulfur vulcanizing agent is elemental sulfur.
  • sulfur vulcanizing agents are used in an amount ranging from about 0.5 to about 4 phr, or even, in some circumstances, up to about 8 phr, with a range of from about 1.5 to about 2.5, sometimes from 2 to 2.5, being preferred.
  • Accelerators are used to control the time and/or temperature required for vulcanization and to improve the properties of the vulcanizate. Retarders are also used the rate of vulcanization.
  • a single accelerator system may be used, i.e., primary accelerator.
  • a primary accelerator(s) is used in total amounts ranging from about 0.5 to about 4, preferably about 0.8 to about 1.5, phr.
  • combinations of a primary or and a secondary accelerator might be used, with the secondary accelerator being used in amounts of about 0.05 to about 3 phr, for example, in order to activate and to improve the properties of the vulcanizate.
  • accelerators might be expected to produce a synergistic effect on the final properties and are somewhat better than those produced by use of either accelerator alone.
  • delayed action accelerators may be used which are not affected by normal processing temperatures but produce a satisfactory cure at ordinary vulcanization temperatures.
  • Suitable types of accelerators that may be used in the present invention are amines, disulfides, guanidines, thioureas, thiazoles, thiurams, sulfenamides, dithiocarbamates and xanthates.
  • the primary accelerator is a sulfenamide.
  • the secondary accelerator is preferably a guanidine, dithiocarbamate or thiuram compound.
  • the presence and relative amounts of sulfur vulcanizing agent and accelerator(s) are not considered to be an aspect of this invention which is more primarily directed to the use of silica as a reinforcing filler in combination with a coupling agent.
  • the tire can be built, shaped, molded and cured by various methods which will be readily apparent to those having skill in such art.
  • Rubber compositions were prepared of various blends of cis 1,4-polybutadiene rubber (PBD) with high vinyl polybutadiene (HVBD) and medium vinyl polybutadiene (MVBD) to herein as Samples B through D.
  • PBD cis 1,4-polybutadiene rubber
  • HVBD high vinyl polybutadiene
  • MVBD medium vinyl polybutadiene
  • a control rubber composition composed of solution polymerization prepared styrene/butadiene copolymer rubber (S-SBR) and cis 1,4-polybutadiene rubber (PBD) was prepared and identified herein as Sample A.
  • S-SBR styrene/butadiene copolymer rubber
  • PBD cis 1,4-polybutadiene rubber
  • the rubber compositions were prepared by mixing the ingredients in several stages, namely, two non-productive stages (without the curatives) and a productive stage (basically for the curatives), then the resulting composition was cured under conditions of elevated temperature and pressure.
  • the rubber compositions were comprised of the ingredients illustrated in Table 1.
  • Table 2 illustrates properties of the cured rubber compositions.
  • Samples B, C and D demonstrated significantly higher rebound and abrasion resistance and lower tan delta @ 60° as compared to Sample A, is indicative of improved rolling resistance and treadwear when the composition is used as a tire tread.
  • Samples C and D further demonstrated a higher 300 percent modulus and 300 percent modulus to 100 percent modulus ratio as compared to Control Sample A which is indicative of improved polymer-silica interaction for a tire with a tread of such composition.
  • the preferred medium vinyl polybutadiene rubber was used.
  • Such rubber was of the hereinbefore described type generally prepared by the U.S. Patent No. 4,230,841 which was incorporated herein by reference.
  • the medium vinyl polybutadiene can be prepared by polymerizing 1,3-butadiene with a very small amount of divinyl benzene is an essentially non-polar aromatic solvent with an alkyl lithium catalyst and at least one polar catalyst modifier.
  • solvents are pentane, hexane, heptane, octane, isooctane and cyclohexene, of which hexane is preferred.
  • alkyl lithium catalysts are methyl lithium, ethyl lithium, propyl lithium, n-butyl lithium, s-butyl lithium, t-butyl lithium and amyl butyl lithium.
  • the n-butyl lithium is preferred.
  • the amount of catalyst is dependent upon the molecular weight desired for the polymerization.
  • the amount of divinylbenzene can be related to the level of active lithium catalyst.
  • the amount of polar compound is dependent upon the vinyl content desired in the polymer. For example, it is described in said patent that between about 0.10 and 1.0 millimols of active alkyl lithium per hundred grams of butadiene can be used and that a mole ratio of divinylbenzene (DVB) to alkyl very small amount of divinylbenzene in a hydrocarbon solvent system, preferably an essentially non-polar aprotic solvent, with an alkyl lithium catalyst, and one or more polar catalyst modifiers to effect the polymer's vinyl content.
  • a hydrocarbon solvent system preferably an essentially non-polar aprotic solvent

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Tires In General (AREA)
  • Tyre Moulding (AREA)
EP94113268A 1993-09-07 1994-08-25 Reifen mit durch Kieselsäure verstärkter Lauffläche Expired - Lifetime EP0641823B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11662393A 1993-09-07 1993-09-07
US116623 1993-09-07

Publications (2)

Publication Number Publication Date
EP0641823A1 true EP0641823A1 (de) 1995-03-08
EP0641823B1 EP0641823B1 (de) 2002-07-03

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Country Status (9)

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US (1) US5614580A (de)
EP (1) EP0641823B1 (de)
JP (1) JPH07179666A (de)
KR (1) KR100335293B1 (de)
AU (1) AU7285494A (de)
BR (1) BR9403453A (de)
CA (1) CA2108763A1 (de)
DE (1) DE69430888T2 (de)
MY (1) MY111129A (de)

Cited By (16)

* Cited by examiner, † Cited by third party
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EP0738614A1 (de) * 1995-04-21 1996-10-23 The Goodyear Tire & Rubber Company Reifen mit Laufflächenaufbau aus zwei Schichten
EP0747426A1 (de) * 1995-06-07 1996-12-11 The Goodyear Tire & Rubber Company Reifen mit Kieselsäure verstärkter Laufflächenmischung
EP0747427A1 (de) * 1995-06-07 1996-12-11 The Goodyear Tire & Rubber Company Reifen mit Kieselsäure verstärkter Laufflächenmischung
EP0748841A1 (de) * 1995-06-06 1996-12-18 Bridgestone Corporation Kautschukmischung zur Verwendung in Reifenlaufflächen
EP0764688A1 (de) * 1995-09-22 1997-03-26 The Goodyear Tire & Rubber Company Hochleistungsmischung für Reifenlaufflächen
US5622557A (en) * 1995-05-22 1997-04-22 Cabot Corporation Mineral binders colored with silicon-containing carbon black
EP0785230A1 (de) * 1995-12-20 1997-07-23 Bayer Ag Vulkanisierbare Kautschukmischungen für die Herstellung von Fahrzeugreifen
US5830930A (en) * 1995-05-22 1998-11-03 Cabot Corporation Elastomeric compounds incorporating silicon-treated carbon blacks
EP0881101A1 (de) * 1997-05-26 1998-12-02 Continental Aktiengesellschaft Kautschukmischung für Laufstreifen für Fahrzeugluftreifen
US5877238A (en) * 1995-05-22 1999-03-02 Cabot Corporation Elastomeric compounds incorporating silicon-treated carbon blacks and coupling agents
US5948835A (en) * 1995-09-15 1999-09-07 Cabot Corporation Silicon-treated carbon black/elastomer formulations and applications
US6008272A (en) * 1995-05-22 1999-12-28 Cabot Corporation Elastomeric compounds incorporating silicon-treated carbon blacks
WO2000073092A1 (en) * 1999-05-31 2000-12-07 Pirelli Pneumatici S.P.A. Low rolling resistance tire for vehicles
US6624233B2 (en) 1999-05-31 2003-09-23 Pirelli Pneumatici S.P.A. Low rolling resistance tire for vehicles
EP1398347A1 (de) * 2002-09-16 2004-03-17 The Goodyear Tire & Rubber Company Reifen mit einer Lauffläche aus einer cis 1,4-Polybutadienreichen Kautschukzusammensetzung, die ein funktionalisiertes Styren/Butadien Elastomer, Silica und ein Kupplungsmittel aufweist
EP1514899A1 (de) * 2003-09-02 2005-03-16 The Goodyear Tire & Rubber Company Reifen mit mindestens einem Seitenwandeinsatz und/oder Apex aus einer Polybutadien mit hohem Vinylgehalt enthaltenden Kautschukzusammensetzung

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CA2104528A1 (en) * 1993-05-05 1994-11-06 Paul Harry Sandstrom Tire with tread containing silica reinforcement
EP0775725B1 (de) * 1994-08-08 2001-05-02 Asahi Kasei Kabushiki Kaisha Hydrierte kautschukzusammensetzung
US5504140A (en) * 1994-09-30 1996-04-02 The Goodyear Tire & Rubber Company Tire with tread of elastomer composition
JP3392246B2 (ja) * 1995-01-06 2003-03-31 横浜ゴム株式会社 ゴム組成物及びその製法
US6323273B1 (en) 1995-05-22 2001-11-27 Cabot Corporation Elastomeric compounds incorporating silicon-treated carbon blacks
JP3479084B2 (ja) * 1996-06-26 2003-12-15 株式会社ブリヂストン ゴム組成物
JP4157608B2 (ja) * 1996-06-26 2008-10-01 株式会社ブリヂストン ゴム組成物
KR20020019832A (ko) * 2000-09-07 2002-03-13 신형인 보강성이 향상된 트레드 고무조성물
US6648041B2 (en) * 2001-08-31 2003-11-18 The Goodyear Tire & Rubber Company Aircraft tire with improved bead structure
US7122586B2 (en) * 2003-03-14 2006-10-17 The Goodyear Tire & Rubber Company Preparation of silica-rich rubber composition by sequential mixing with maximum mixing temperature limitations
US7441572B2 (en) * 2004-09-17 2008-10-28 The Goodyear Tire & Rubber Company Pneumatic tire having a tread containing immiscible rubber blend and silica
KR100635609B1 (ko) 2005-06-22 2006-10-18 금호타이어 주식회사 압출성이 향상된 타이어 트레드 고무조성물
JP4752957B2 (ja) * 2009-06-17 2011-08-17 横浜ゴム株式会社 タイヤトレッド用ゴム組成物
US9879131B2 (en) 2012-08-31 2018-01-30 Soucy Techno Inc. Rubber compositions and uses thereof
WO2015054779A1 (en) 2013-10-18 2015-04-23 Soucy Techno Inc. Rubber compositions and uses thereof
JP5950358B2 (ja) * 2013-12-06 2016-07-13 住友ゴム工業株式会社 高減衰組成物および粘弾性ダンパ
WO2015089647A1 (en) 2013-12-19 2015-06-25 Soucy Techno Inc. Rubber compositions and uses thereof
WO2016200642A1 (en) * 2015-06-11 2016-12-15 Bridgestone Americas Tire Operations, Llc Rubber compositions containing viscosity modifier and related methods
US9441098B1 (en) * 2015-11-18 2016-09-13 The Goodyear Tire & Rubber Company Tire with tread for low temperature performance and wet traction

Citations (3)

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EP0447066A1 (de) * 1990-03-02 1991-09-18 Bridgestone Corporation Luftreifen
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Cited By (23)

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EP0738614A1 (de) * 1995-04-21 1996-10-23 The Goodyear Tire & Rubber Company Reifen mit Laufflächenaufbau aus zwei Schichten
CN1052687C (zh) * 1995-04-21 2000-05-24 固特异轮胎和橡胶公司 具有盖／底结构胎面的轮胎
US5622557A (en) * 1995-05-22 1997-04-22 Cabot Corporation Mineral binders colored with silicon-containing carbon black
US5877238A (en) * 1995-05-22 1999-03-02 Cabot Corporation Elastomeric compounds incorporating silicon-treated carbon blacks and coupling agents
US6008272A (en) * 1995-05-22 1999-12-28 Cabot Corporation Elastomeric compounds incorporating silicon-treated carbon blacks
US5919841A (en) * 1995-05-22 1999-07-06 Cabot Corporation Elastomeric compounds incorporating silicon-treated carbon blacks
US5830930A (en) * 1995-05-22 1998-11-03 Cabot Corporation Elastomeric compounds incorporating silicon-treated carbon blacks
EP0748841A1 (de) * 1995-06-06 1996-12-18 Bridgestone Corporation Kautschukmischung zur Verwendung in Reifenlaufflächen
US5780535A (en) * 1995-06-06 1998-07-14 Bridgestone Corporation Rubber compositions for use in tire tread
CN1086717C (zh) * 1995-06-07 2002-06-26 固特异轮胎和橡胶公司 具有二氧化硅补强的胎面的轮胎
EP0747427A1 (de) * 1995-06-07 1996-12-11 The Goodyear Tire & Rubber Company Reifen mit Kieselsäure verstärkter Laufflächenmischung
EP0747426A1 (de) * 1995-06-07 1996-12-11 The Goodyear Tire & Rubber Company Reifen mit Kieselsäure verstärkter Laufflächenmischung
CN1086718C (zh) * 1995-06-07 2002-06-26 固特异轮胎和橡胶公司 具有二氧化硅补强的胎面的轮胎
US5948835A (en) * 1995-09-15 1999-09-07 Cabot Corporation Silicon-treated carbon black/elastomer formulations and applications
EP0764688A1 (de) * 1995-09-22 1997-03-26 The Goodyear Tire & Rubber Company Hochleistungsmischung für Reifenlaufflächen
EP0785230A1 (de) * 1995-12-20 1997-07-23 Bayer Ag Vulkanisierbare Kautschukmischungen für die Herstellung von Fahrzeugreifen
EP0881101A1 (de) * 1997-05-26 1998-12-02 Continental Aktiengesellschaft Kautschukmischung für Laufstreifen für Fahrzeugluftreifen
DE19721917A1 (de) * 1997-05-26 1998-12-03 Continental Ag Kautschukmischung für Laufstreifen für Fahrzeugluftreifen
WO2000073092A1 (en) * 1999-05-31 2000-12-07 Pirelli Pneumatici S.P.A. Low rolling resistance tire for vehicles
US6624233B2 (en) 1999-05-31 2003-09-23 Pirelli Pneumatici S.P.A. Low rolling resistance tire for vehicles
EP1398347A1 (de) * 2002-09-16 2004-03-17 The Goodyear Tire & Rubber Company Reifen mit einer Lauffläche aus einer cis 1,4-Polybutadienreichen Kautschukzusammensetzung, die ein funktionalisiertes Styren/Butadien Elastomer, Silica und ein Kupplungsmittel aufweist
US6998448B2 (en) 2002-09-16 2006-02-14 The Goodyear Tire & Rubber Company Tire with tread of CIS 1,4-polybutadiene rich rubber composition which contains a functional styrene/butadiene elastomer, silica and coupling agent
EP1514899A1 (de) * 2003-09-02 2005-03-16 The Goodyear Tire & Rubber Company Reifen mit mindestens einem Seitenwandeinsatz und/oder Apex aus einer Polybutadien mit hohem Vinylgehalt enthaltenden Kautschukzusammensetzung

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MY111129A (en) 1999-08-30
EP0641823B1 (de) 2002-07-03
DE69430888T2 (de) 2003-03-20
DE69430888D1 (de) 2002-08-08
BR9403453A (pt) 1995-05-16
KR950008596A (ko) 1995-04-19
CA2108763A1 (en) 1995-03-08
AU7285494A (en) 1995-03-23
JPH07179666A (ja) 1995-07-18
KR100335293B1 (ko) 2002-09-04
US5614580A (en) 1997-03-25

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